r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 240

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 9 Bus State Controller (BSC)
9.4.3
CSnWCR specifies various wait cycles for memory accesses. Specify CSnWCR before accessing
the target area. CSnWCR should be modified only after CSnBCR setting is completed.
Initial value:
Initial value:
Rev. 1.00 Sep. 21, 2007 Page 214 of 1124
REJ09B0402-0100
Bit
31 to 19
18 to 16
15 to 13
R/W:
R/W:
Bit:
Bit:
CSn Space Wait Control Register (CSnWCR) (n = 0 and 1)
31
15
R
R
0
0
Bit Name

WW[2:0]

-
-
30
14
R
R
0
0
-
-
29
13
R
R
0
0
-
-
Initial
Value
All 0
000
All 0
R/W
28
12
R
0
0
-
SW[1:0]
R/W
27
11
R
0
0
-
R/W
R
R/W
R
R/W
26
10
R
0
1
-
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Number of Wait Cycles in Write Access
Specify the number of cycles required for write access.
000: The same cycles as WR3 to WR0 settings (read
001: 0 cycles
010: 1 cycle
011: 2 cycles
100: 3 cycles
101: 4 cycles
110: 5 cycles
111: 6 cycles
Reserved
These bits are always read as 0. The write value should
always be 0.
R/W
25
R
0
9
0
-
WR[3:0]
access wait)
R/W
24
R
0
8
1
-
R/W
23
R
0
7
0
-
R/W
WM
22
R
0
6
0
-
21
R
R
0
5
0
-
-
20
R
R
0
4
0
-
-
19
R
R
0
3
0
-
-
R/W
18
R
0
2
0
-
WW[2:0]
R/W
R/W
17
0
1
0
HW[1:0]
R/W
R/W
16
0
0
0